Process for making a field emitter cathode using a...

Details Process for making a field emitter cathode using a... Process for making a field emitter cathode using a...

H - Electricity

01

J

H01J 9/02 (2006.01)

Patent

CA 2234934

A process for making a field emitter cathode by attaching a particulate field emitter material to a substrate. The particulate field emitter material is dispersed in a solution of a metal compound in a solvent and deposited onto the surface of the substrate. The substrate is heated for sufficient time to completely reduce the metal compound to the metal. The resulting field emitter cathode is a substrate coated with a thin layer of the metal with a particulate field electron emitter material embedded therein and protruding therefrom.

Cette invention se rapporte à un procédé pour fabriquer une cathode d'émission de champ en fixant un matériau émetteur de champ particulaire à un substrat. Ce matériau émetteur de champ particulaire est dispersé dans une solution d'un composé métallique en solvant et il est déposé sur la surface de ce substrat. Ce substrat est chauffé pendant une période suffisante pour réduire complètement le composé métallique en métal. La cathode d'émission de champ qui en résulte est constituée par un substrat recouvert d'une mince couche de ce métal, dans lequel est incorporé un matériau émetteur d'électrons de champ particulaire faisant saillie sur ce substrat.

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